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https://issues.apache.org/jira/browse/AMBARI-11402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14560043#comment-14560043
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Jaimin D Jetly commented on AMBARI-11402:
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+1 for the patch
> 'Add Metric' menu cannot open after a dataset/expression got deleted
> --------------------------------------------------------------------
>
> Key: AMBARI-11402
> URL: https://issues.apache.org/jira/browse/AMBARI-11402
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.1.0
> Reporter: Xi Wang
> Assignee: Xi Wang
> Labels: bb1
> Fix For: 2.1.0
>
> Attachments: AMBARI-11402.patch
>
>
> *STR*:
> 1. Edit/Create a widget in type "Template" or "Graph"
> 2. In step2, add a new "Expression" or "Dataset", then delete it.
> 3. Open "Add metric" menu, it cannot be open.
> 4. Add another new "Expression" or "Dataset",
> 5. Open "Add metric" menu, it can be open successfully.
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